<template>
	<div>
		<!-- 面包屑 -->
		<el-breadcrumb separator-class="el-icon-arrow-right">
			<el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
			<el-breadcrumb-item>商品管理</el-breadcrumb-item>
			<el-breadcrumb-item>添加商品</el-breadcrumb-item>
		</el-breadcrumb>
		<!-- 卡片视图 -->
		<el-card>
			<!-- 提示 -->
			<el-alert title="添加商品信息" type="info" center show-icon :closable="false"></el-alert>
			<!-- 步骤条-->
			<el-steps :space="200" :active="activeIndex - 0" finish-status="success" align-center>
				<el-step title="基本信息"></el-step>
				<el-step title="商品参数"></el-step>
				<el-step title="商品属性"></el-step>
				<el-step title="商品图片"></el-step>
				<el-step title="商品内容"></el-step>
				<el-step title="完成"></el-step>
			</el-steps>
			<!-- tab栏 -->
			<el-form :model="addForm" :rules="addFormRules" ref="ruleFormRef" label-width="100px" label-position="top">
				<el-tabs :tab-position="'left'" v-model="activeIndex" :before-leave="beforeTabLeave" @tab-click="tabClicked">
					<el-tab-pane label="基本信息" name="0">
						<el-form-item label="商品名称" prop="goods_name"><el-input v-model="addForm.goods_name"></el-input></el-form-item>
						<el-form-item label="商品价格" prop="goods_price"><el-input v-model="addForm.goods_price" type="number"></el-input></el-form-item>
						<el-form-item label="商品重量" prop="goods_weight"><el-input v-model="addForm.goods_weight" type="number"></el-input></el-form-item>
						<el-form-item label="商品数量" prop="goods_number"><el-input v-model="addForm.goods_number" type="number"></el-input></el-form-item>
						<el-form-item label="商品分类" prop="goods_cat">
							<el-cascader v-model="addForm.goods_cat" :options="cateList" :props="cateProps" @change="handleChange" width="250"></el-cascader>
						</el-form-item>
					</el-tab-pane>
					<!-- 渲染表单item项 -->
					<el-tab-pane label="商品参数" name="1">
						<el-form-item :label="item.attr_name" v-for="item in manyTableData" :key="item.attr_id">
							<!-- 复选框 -->
							<el-checkbox-group v-model="item.attr_vals">
								<el-checkbox :label="cb" v-for="(cb, i) in item.attr_vals" :key="i" border></el-checkbox>
							</el-checkbox-group>
						</el-form-item>
					</el-tab-pane>
					<el-tab-pane label="商品属性" name="2">
						<el-form-item :label="item.attr_name" v-for="item in onlyTableData" :key="item.attr_id"><el-input v-model="item.attr_vals"></el-input></el-form-item>
					</el-tab-pane>
					<el-tab-pane label="商品图片" name="3">
						<el-upload :action="uploadURL" :on-preview="handlePreview" :headers="headersObj" :on-remove="handleRemove" list-type="picture" :on-success="handleSuccess">
							<el-button size="small" type="primary">点击上传</el-button>
						</el-upload>
					</el-tab-pane>
					<el-tab-pane label="商品内容" name="4">
						<!-- 富文本编辑器组件 -->
						<quill-editor
							ref="myQuillEditor"
							v-model="addForm.goods_introduce"
							@blur="onEditorBlur($event)"
							@focus="onEditorFocus($event)"
							@ready="onEditorReady($event)"
						/>
						<!-- 添加商品按钮 -->
						<el-button type="primary" class="btnMT" @click="add">点击上传</el-button>
					</el-tab-pane>
				</el-tabs>
			</el-form>
		</el-card>
		<!-- 预览对话框 -->
		<el-dialog title="图片预览" :visible.sync="previewVisible" width="50%"><img :src="previewPath" alt="" /></el-dialog>
	</div>
</template>

<script>
import _ from 'lodash';
export default {
	data() {
		return {
			activeIndex: '0',
			addForm: {
				goods_name: '',
				goods_price: 0,
				goods_weight: 0,
				goods_number: 0,
				goods_cat: [],
				pics: [],
				//商品描述字段
				goods_introduce: '',
				attrs: []
			},
			addFormRules: {
				goods_name: [{ required: true, message: '请输入商品名称', trigger: 'blur' }],
				goods_price: [{ required: true, message: '请输入商品价格', trigger: 'blur' }],
				goods_weight: [{ required: true, message: '请输入商品重量', trigger: 'blur' }],
				goods_number: [{ required: true, message: '请输入商品数量', trigger: 'blur' }],
				goods_cat: [{ required: true, message: '请输入商品分类', trigger: 'blur' }]
			},
			cateList: [],
			cateProps: {
				label: 'cat_name',
				value: 'cat_id',
				children: 'children',
				goods_cat: [],
				expandTrigger: 'hover'
			},
			//动态参数列表
			manyTableData: [],
			//静态属性列表
			onlyTableData: [],
			//请求地址
			uploadURL: 'http://127.0.0.1:8888/api/private/v1/upload',
			//请求头对象
			headersObj: {
				Authorization: window.sessionStorage.getItem('token')
			},
			previewPath: '',
			previewVisible: false,
			editorOption: ''
		};
	},
	created() {
		this.getCateList();
	},
	methods: {
		async getCateList() {
			const { data: res } = await this.$http.get('categories');
			if (res.meta.status !== 200) {
				return this.$message.error('获取商品列表失败');
			}
			this.cateList = res.data;
			// console.log(this.cateList);
		},
		//级联选择器变化 会触发的这个函数
		handleChange() {
			// console.log(this.addForm.goods_cat);
			if (this.addForm.goods_cat.length !== 3) {
				this.addForm.goods_cat.length = [];
			}
		},
		beforeTabLeave(activeName, oldActiveName) {
			// console.log(1+activeName, 2+oldActiveName)

			// return false;
			if (oldActiveName === '0' && this.addForm.goods_cat.length !== 3) {
				this.$message.error('请选择商品分类！');
				return false;
			}
		},
		async tabClicked() {
			// console.log(this.activeIndex)
			//证明访问动态参数面板
			if (this.activeIndex === '1') {
				const { data: res } = await this.$http.get(`categories/${this.cateId}/attributes`, {
					params: { sel: 'many' }
				});
				if (res.meta.status !== 200) {
					return this.$message.error('获取动态参数列表失败');
				}
				// console.log(res.data);
				res.data.forEach(item => {
					item.attr_vals = item.attr_vals.length === 0 ? [] : item.attr_vals.split(' ');
				});
				this.manyTableData = res.data;
			} else if (this.activeIndex === '2') {
				const { data: res } = await this.$http.get(`categories/${this.cateId}/attributes`, {
					params: { sel: 'only' }
				});
				if (res.meta.status !== 200) {
					return this.$message.error('获取动态参数列表失败');
				}
				// console.log(res.data);
				this.onlyTableData = res.data;
			}
		},
		//处理图片预览的操作
		handlePreview(file) {
			console.log(file);
			this.previewPath = file.response.data.url;
			this.previewVisible = true;
		},
		//移除图片
		handleRemove(file) {
			console.log(file);
			const filePath = file.response.data.tmp_path;
			const index = this.addForm.pics.findIndex(i => {
				i.pic === filePath;
			});
			this.addForm.pics.splice(index, 1);
			console.log(this.addForm);
		},
		//监听图片上传成功的操作
		handleSuccess(res) {
			//1.拼接得到图片对象
			const picInfo = { pic: res.data.tmp_path };
			//2。将图片信息存到 数组中
			this.addForm.pics.push(picInfo);
			console.log(this.addForm);
		},

		onEditorBlur() {},
		onEditorFocus() {},
		onEditorReady() {},

		add() {
			console.log(this.addForm);
			this.$refs.ruleFormRef.validate(async v => {
				if (!v) {
					return this.$message.error('请填写必要的表单项');
				}
				
				//处理动态参数
				this.manyTableData.forEach(item => {
					const newInfo = { attr_id: item.attr_id, attr_value: item.attr_vals.join(' ') };
					this.addForm.attrs.push(newInfo);
				});
				//处理静态属性
				this.onlyTableData.forEach(item => {
					const newInfo = {
						attr_id: item.attr_id,
						attr_value: item.attr_vals
					};
					this.addForm.attrs.push(newInfo);
				});
				//执行业务添加的逻辑 lodash cloneDeep(obj)
				const form = _.cloneDeep(this.addForm);
				form.goods_cat = form.goods_cat.join(',');
				form.attrs = this.addForm.attrs;
				
				console.log(form);
				//发请求 添加商品
				const { data: res } = await this.$http.post('goods', form);
				if (res.meta.status !== 201) {
					return this.$message.error('添加商品失败');
				}
				this.$message.success('添加商品成功！');
				this.$router.push('/goods')
				
			});
		}
	},
	computed: {
		cateId() {
			if (this.addForm.goods_cat.length === 3) {
				return this.addForm.goods_cat[2];
			}
			return null;
		}
	}
};
</script>

<style lang="less" scoped>
.el-checkbox {
	margin: 0 0.4375rem 0 0 !important;
}
img {
	width: 100%;
}
.btnMT {
	margin-top: 0.4375rem;
}
</style>
